а) 5b + 4c = 56 + 43 = 30 + 12 = 42б) 72:b - c = 72/6 - 3 = 12 - 3 = 9в) (58-b) ∙c = (58-6) 3 = 52 3 = 156
а) 5b + 4c = 56 + 43 = 30 + 12 = 42
б) 72:b - c = 72/6 - 3 = 12 - 3 = 9
в) (58-b) ∙c = (58-6) 3 = 52 3 = 156